Seam for sewed articles



A. H. DE VOE.

SEAM FOR SEWED ARTICLES.

APPLICATION FlLED*AUG- 4, 1917.

1 428,4790 Patented July 18, 1922.

INVENTOR v 1 BY Ql p V l WW /wx ATTORNEY ALBERT H. DE VOE, OI? VTESIFIELD, NEW JERSEY, ASSIGNGR TO THE SINGER MANUI. FAGTURING COMPANY, A {.ORPORATION OF NEW JERSEY,

SEAM FOR SEVTED ARTICLES.

inseam.

Application filed August 4:, 1917.

To all whom it may concern:

Be it known that I, AL ERT H. DE Von, a citizen of the United States, residing at VVestfield, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Seams for Sewed Articles, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to seams for sewed articles and has for an object to provide a two-thread seam which may be formed without passing either of the thread-supplying masses through loops of the other thread and which will possessgreat strength and marked non-raveling characteristics.

To this end the invention preferably comprises body-fabric material supporting a row of well known single-chain stitches presenting longitudinally extending threadportions at one sid of the material and a row of enchained loops at the other side of the material. A second thread extends preferably alongside the first thread and is formed at intervals with loops which enter the material and embrace said. enchained loops, preferably drawing portions of said enchained loops up into the material and binding or snubbing the limbs of said loops tightly together and to the material.

Inthe accompanying drawings Fig. l is a. perspective view of the preferred thread structure in the air. Fig. 2 is a longitudinal section through the seam, in its preferred form. Fig. Sis a bottom plan View of the same.

In the preferred embodiment of the invention illustrated, the seam comprises body fabric material presenting two superposed plies 1 and 2. A main-thread 3 extends lengthwise of the line of scam at the face l of the material which, for convenience, may be called the upper face. The thread 3 is formed at intervals with the main-loops 5 having limbs 6 and 7 including vertical portions extending from the face 4: of the material through punctures 8 to the face 9 of the material which, for convenience, may be called the under face. The limbs of the loops 5 further include portions 6 and 7 which extend along the under face of the material and terminate in a return bend embracing the limbs of an adjacent loop 5.

The thread isthus arranged in a. connected series of enchained loops and, in the pres- Patented July ll 8,

Serial No. 184,448.

entinstance, forms a line of single-thread chain-stitches of well known construction and" passing through the material. Such stitches are, per se, easily raveled out. To prevent easy ravelmg of the thread 3 and to add greatly to the strength and symmetrical appearance or the seam 1 make use of an additional or auxiliary thread 9 which in. the present 1nstance, 1s formed into penetra tive loops l0 extending into the same punc tures occupied by the main loops 5 and embracing the limbs 6 and 7 of adjacent loops 5 preferably drawing the embracedp0"- tions of said loops into the material and preferably tightly constricting the extrenr it-ies of said loops 5 around the limbs 6 and 7 of adjacent loops 5, as shown in Fig.

By virtue of this secure gripping of the loops 5 by the tightly constricted extremities of previously formed loops 5 and by the loops 10, it will be appreciated that there will be little tendency for the seam to ravel and, indeed, if the seam is properly formed and well set, the thread 3 will often break before-relative slippage of the limbs 6 and 7 of a loop 5 can be effected in an attempt to ravel out the seam. It will be seen that each loop is, in the preferred embodiment, tightly gripped at two spaced points, to wit: at an intermediate portion by the constricted extremity of a previously formed loop 5 and at its extremity by a loop 10 of the auxiliary thread which sets the extremity of the loop 5 tightly against or even draws it into the work, as shown in Fig. 2, tightly pressing or snubbing the extremity f the loop 5 against the under face of the material adjacent the puncture 8.

Modifications of the invention. will no doubt readily suggest themselves from the above disclosure to those skilled in the art and I do not, therefore, intend the present invention to be limited to the exact structure shown and described.

Having thus set forth the nature of the invention, what I claim herein is 1. A seam for sewed articles comprising body-fabric material and a line of stitches carried thereby and including a first thread formed into enchained loops and a second thread presenting loops each entering the material and embracing an enchained loop at its point of connection with a succeeding loop to thereby tightly constrict said end around the succeeding enchained loop.

L. A seam tor sewed articles comprising in combination, body-fabric material, a thread formed into a series of penetrative loops entering the material and another thread formed into keying loops, each of said keying loops embracing another keying loop and being embraced at its point of connection, with a succeeding loop by a penetrati've loop, whereby the first-named keying loop is drawn into the material and also tightly constricted around the second keying loop.

3. i seam for sewed articles comprising, body-fabric material, and two threads having portions extending lengthwise of the line of scam at one face of the material and preseiiiting penetrative loops extending into the same punctures in the material, each of said loops surrounding and being keyed by another of said loops.

4-. A seam tor sewed articles comprising, body-fabric material and a line of stitches disposed. in said material and including an auxiliary thread extending lengthwise of the line of scam and formed into auxiliary loops, and a main thread extending lengthwise of the line of; scam and formed into main loops, each of said main loops entering an auxiliary loop and embracing another main loop, a main and an auxiliary loop passing through each puncture in the material.

5. A seam for sewed articles comprising. body-fabric material, a line of single-thread chain-stitches disposed therein and presenting a row of loops extending through needlepunctures in the material and enchained at one face of the material, and a second thread extending along the opposite face of the material and formed into loops entering the material and each of said loops embracing the end portion of an enchained loop at one of said needle-punctures.

(3. A seam for sewed articles comprising, body -l":abric, a main thread extending lengthwise of the line of scam and presenting pei'ietrative thread-loop structures extending through the material, and an auxiliary thread formed into loops extending through the same punctures as the main thread-loops, each of said penetrative thread-loop structures entering a loop of said auxiliary-thread and embracing a loop of its own thread.

7. A seam for sewed articles comprising, l ody-tabric material having punctures, a main thread having portions extending lengthwise of the line of scam at the upper face of the material and presenting penetrative main loops extending through said punctures to the under face of the material and enchained with one another to form single-chain stitches, and an additional thread having portions extending lengthwise of the line of seam the upper face of the material and presenting auxiliary penetrative loops extending into the punctures occupied by said main loops, each of said auxiliary loops embracing and being lreyed by a main loop.

8. A scam tor sewed articles comprising fabric material, a line of stitches formed therein and including a first thread formed. into enchained loops, and a second thread having loops entering the material, each of which embraces and tightly constricts one enchained loop at its point of connection with a succeeding loop and tightly constricts the succeeding enchained loop at an intermediate portion.

9. A seam for sewed articles comprising fabric material, a line of stitches formed therein and inchiding a primary thread having loops extending through the material, and a secondary thread having loops extending through the same punctures as the primary thread, each secondary thread-loop tightly constricting two primary threadloops.

In testimony whereof, I have signed my name to this specification.

ALBERT H. DE VOE. 

